I have my own package of rblcheck, which incorporates a few
useful patches. One of the patches adds my own local lists as
default lists to check, so you'll want to edit those out, but
the rest may be useful to you:

Do you have an origin for the patches? Or are they made by you? If so, can
you provide me with URLs where I can point the Patch-tags in the specfile
to!?

No specific URLs I'm afraid.

rblcheck-zones.patch:
I made this myself and it's responsible for most of the changelog
entries, as I add and remove lists as and when they appear and
disappear. I changed the text "RBL filtered by" to "listed by" because
(a) it's more accurate, and (b) "RBL" is a trademark of MAPS LLC.